[PATCH] D142871: [clangd] Semantic highlighting for constrained-parameter

[Nathan Ridge via Phabricator via cfe-commits]

nridge created this revision.
nridge added a reviewer: kadircet.
Herald added a subscriber: arphaman.
Herald added a project: All.
nridge requested review of this revision.
Herald added subscribers: cfe-commits, MaskRay, ilya-biryukov.
Herald added a project: clang-tools-extra.

Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D142871

Files:
  clang-tools-extra/clangd/FindTarget.cpp
  clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp


Index: clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp
===================================================================
--- clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp
+++ clang-tools-extra/clangd/unittests/SemanticHighlightingTests.cpp
@@ -1023,7 +1023,7 @@
         class $Class_def[[Z]] {};
         template $Bracket[[<]]typename, typename$Bracket[[>]]
         concept $Concept_decl[[C2]] = true;
-        template $Bracket[[<]]C2$Bracket[[<]]int$Bracket[[>]] $TemplateParameter_def[[A]]$Bracket[[>]]
+        template $Bracket[[<]]$Concept[[C2]]$Bracket[[<]]int$Bracket[[>]] $TemplateParameter_def[[A]]$Bracket[[>]]
         class $Class_def[[B]] {};
       )cpp",
       // no crash
Index: clang-tools-extra/clangd/FindTarget.cpp
===================================================================
--- clang-tools-extra/clangd/FindTarget.cpp
+++ clang-tools-extra/clangd/FindTarget.cpp
@@ -607,6 +607,7 @@
 llvm::SmallVector<ReferenceLoc> refInDecl(const Decl *D,
                                           const HeuristicResolver *Resolver) {
   struct Visitor : ConstDeclVisitor<Visitor> {
+    using Base = ConstDeclVisitor<Visitor>;
     Visitor(const HeuristicResolver *Resolver) : Resolver(Resolver) {}
 
     const HeuristicResolver *Resolver;
@@ -707,6 +708,17 @@
                                   /*IsDecl=*/true,
                                   {OCID->getCategoryDecl()}});
     }
+
+    void VisitTemplateTypeParmDecl(const TemplateTypeParmDecl *D) {
+      if (auto *TC = D->getTypeConstraint()) {
+        Refs.push_back(ReferenceLoc{TC->getNestedNameSpecifierLoc(),
+                                    TC->getConceptNameLoc(),
+                                    /*IsDecl=*/false,
+                                    {TC->getNamedConcept()}});
+      }
+      // Pick up the name via VisitNamedDecl
+      Base::VisitTemplateTypeParmDecl(D);
+    }
   };
 
   Visitor V{Resolver};


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